Brodes - this happened to me exactly at the same time as you till about 7 weeks. All is ok i had an ultrasound at 7 weeks to see what was going on and bubs was excellent heartbeat 148bpm, the sonographer said if there was an impending miscarriage the heartbeat is under 110 bpm more close to 90 bpm, she said no sign of miscarriage happening, she did find the cause of spotting i had a hairline amt of bleeding, so so tiny that she thinks happened during implantation and said it is quite normal. i just my 12 weeks scan last week and all was fantastic!!!! What i recommend is get an ultrasound that will tell you whats going on!!! Goodluck